Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
520132 | Journal of Computational Physics | 2010 | 10 Pages |
Abstract
This study is mainly focused on iterative solutions with simple diagonal preconditioning to two complex-valued nonsymmetric systems of linear equations arising from a computational chemistry model problem proposed by Sherry Li of NERSC. Numerical experiments show the feasibility of iterative methods to some extent when applied to the problems and reveal the competitiveness of our recently proposed Lanczos biconjugate A-orthonormalization methods to other classic and popular iterative methods. By the way, experiment results also indicate that application specific preconditioners may be mandatory and required for accelerating convergence.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Yan-Fei Jing, Ting-Zhu Huang, Yong Duan, Bruno Carpentieri,